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· The Complete Japanese Home System ·

Cut Every Household Bill
— Down To Zero.

Three generations of Mori family field research from Nagano and Niigata prefectures. Choose your edition below.

1,840+ Readers 99.91% Satisfaction 7-Day Money-Back Guarantee
¥30,000System
Volume I
家
The Mori Home Blueprint
森 健二 · Nagano
森の家の設計図
The Mori Home Blueprint
The technical methods — the "what" of the system
$47
$27
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  • 28 traditional methods for heating, cooling, pest control, water
  • The kominka passive cooling system from Niigata farmhouses
  • Engine longevity protocols passed down through the Mori workshop
  • Wood preservation using kakishibu — documented from 1890s sources
  • Perfect first step for new readers
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¥1,200/Year
Volume II
蔵
The Pantry & Ferment Blueprint
森 健二 · Niigata
食料庫の設計図
The Pantry & Ferment Blueprint
Household chemistry — the "kitchen" applications
$77
$47
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  • The ¥1,200-a-year soap recipe replacing ¥40,000 of products
  • Rice bran, konnyaku, and natural ash protocols
  • Complete fermentation chapter (miso, tsukemono, nukazuke, vinegar)
  • Dozo root cellar science and temperature management
  • Universal — works in homes, apartments, anywhere
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★★★★★ Best Value & Most Recommended
Save$133
Complete Edition
里山
The Complete Field Edition
All Three Volumes
森 健二 · Nagano · 2026
完全版フィールドエディション
The Complete Field Edition
Volume I + Volume II + Exclusive Volume III
I Home
+
II Pantry
+
III Field EXCLUSIVE
$230
$97
Save $133 — Limited Time
✦ Bundle-Exclusive Bonuses ✦
Bonus 1 Volume III — 90-Day Satoyama Implementation Calendar $67 value
Bonus 2 5 case studies with documented bill reductions $29 value
Bonus 3 The 2026 Sourcing List — global suppliers with current prices $19 value
  • Volume I + Volume II — the complete method library
  • Volume III — sold only inside this bundle
  • Day-by-day calendar turning methods into measurable savings
  • Regional adaptations for 5 climates + senior-friendly modifications
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Most of what we pay for monthly was once free.

In the mountain villages of Nagano, the average household spends around ¥28,000 a year on what the rest of Japan and the world spends ¥900,000+ on — pest control, cooling, heating, cleaning chemistry, water, food preservation.

This three-volume set documents what Kenji Mori learned from his grandfather's notebooks — and the 90-day calendar that turns it into measurable savings on your next utility bill.

Satoyama no chie — "The wisdom of the village borderland"

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Reader Stories

— Composite illustrations from reader feedback across the channel —

★★★★★
I opened the August bill on a Tuesday. I called my husband. He thought something was wrong. The bill was €94. August the year before was €217. He drove down that weekend just to see the ventilation channel in person.
— Hanne V., Netherlands · 57% bill reduction
★★★★★
The fermentation chapter alone paid for this three times over. We haven't bought cleaning spray, dishwasher tabs, or fabric softener in four months. My wife stopped calling it "your experiment" when the grocery bill dropped by €60 a week.
— Peter K., Germany · 44% savings on household products
★★★★★
We bought this because we wanted to reduce our dependency. The bills going down was the side effect. The peace of mind — knowing we could run the house on almost nothing if we had to — that's the real return.
— Mark & Susan F., United Kingdom · 48% bill reduction

Common Questions

Everything you need to know before you order

Do these methods work in my climate — I'm not in Japan?
Most methods are climate-universal. A few (like the kominka passive ventilation system) are calibrated for hot-humid climates but work well in temperate Europe, North America, and Australia with minor adaptation. Volume III includes specific guidance for 5 climate zones so you know exactly which methods apply and which to skip.
How quickly will I see savings on my bills?
The Week 2 product swaps (soap recipe, natural pest control, water heater adjustment) show up on your next billing cycle — typically 28–35 days. The larger savings from the ventilation and insulation methods appear within 60 days. By the end of the 90-day program, most readers see 30–55% reduction in energy and household product costs.
What if I'm a renter or live in an apartment?
Volume II works fully for renters — soap recipes, fermentation, cleaning chemistry, food storage. Volume I has selective applications (filtration, natural pest control, electrical efficiency). Case study #5 in Volume III documents a Berlin renter who cut his controllable bills by 41% using apartment-compatible methods only.
I'm in my 60s or 70s. Is this for me?
Yes. Volume III includes a dedicated Senior-Friendly Modifications section. Most physical builds can be hired out for €300–600 and still pay back within the first year. Case studies #1 and #4 show the program working fully with hired help at the same long-term savings.
What format are the books? How do I access them?
All three volumes are delivered as downloadable PDFs immediately after purchase. Read on any device — phone, tablet, or computer — or print for use during builds. No monthly fees, no subscriptions, no app required. Yours forever.
What's your refund policy?
7-day money-back guarantee on every purchase. If the content doesn't meet your expectations within the first week, you get a full refund — no questions asked.
Complete Field Edition $230 $97
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